Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/netpfil/ipfw/nptv6/ip_fw_nptv6.c
39536 views
1
/*-

2
 * Copyright (c) 2016 Yandex LLC

3
 * Copyright (c) 2016 Andrey V. Elsukov <[email protected]>

4
 * All rights reserved.

5
 *

6
 * Redistribution and use in source and binary forms, with or without

7
 * modification, are permitted provided that the following conditions

8
 * are met:

9
 *

10
 * 1. Redistributions of source code must retain the above copyright

11
 *    notice, this list of conditions and the following disclaimer.

12
 * 2. Redistributions in binary form must reproduce the above copyright

13
 *    notice, this list of conditions and the following disclaimer in the

14
 *    documentation and/or other materials provided with the distribution.

15
 *

16
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

17
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

18
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

19
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

20
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

21
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

22
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

23
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

24
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

25
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

26
 */

27


28
#include <sys/param.h>

29
#include <sys/systm.h>

30
#include <sys/kernel.h>

31
#include <sys/lock.h>

32
#include <sys/malloc.h>

33
#include <sys/module.h>

34
#include <sys/rwlock.h>

35
#include <sys/socket.h>

36


37
#include <net/if.h>

38
#include <net/vnet.h>

39


40
#include <netinet/in.h>

41
#include <netinet/ip_var.h>

42
#include <netinet/ip_fw.h>

43


44
#include <netpfil/ipfw/ip_fw_private.h>

45
#include <netpfil/ipfw/nptv6/nptv6.h>

46


47
static int

48
vnet_ipfw_nptv6_init(const void *arg __unused)

49
{

50


51
	return (nptv6_init(&V_layer3_chain, IS_DEFAULT_VNET(curvnet)));

52
}

53


54
static int

55
vnet_ipfw_nptv6_uninit(const void *arg __unused)

56
{

57


58
	nptv6_uninit(&V_layer3_chain, IS_DEFAULT_VNET(curvnet));

59
	return (0);

60
}

61


62
static int

63
ipfw_nptv6_modevent(module_t mod, int type, void *unused)

64
{

65


66
	switch (type) {

67
	case MOD_LOAD:

68
	case MOD_UNLOAD:

69
		break;

70
	default:

71
		return (EOPNOTSUPP);

72
	}

73
	return (0);

74
}

75


76
static moduledata_t ipfw_nptv6_mod = {

77
	"ipfw_nptv6",

78
	ipfw_nptv6_modevent,

79
	0

80
};

81


82
/* Define startup order. */

83
#define	IPFW_NPTV6_SI_SUB_FIREWALL	SI_SUB_PROTO_IFATTACHDOMAIN

84
#define	IPFW_NPTV6_MODEVENT_ORDER	(SI_ORDER_ANY - 128) /* after ipfw */

85
#define	IPFW_NPTV6_MODULE_ORDER		(IPFW_NPTV6_MODEVENT_ORDER + 1)

86
#define	IPFW_NPTV6_VNET_ORDER		(IPFW_NPTV6_MODEVENT_ORDER + 2)

87


88
DECLARE_MODULE(ipfw_nptv6, ipfw_nptv6_mod, IPFW_NPTV6_SI_SUB_FIREWALL,

89
    IPFW_NPTV6_MODULE_ORDER);

90
MODULE_DEPEND(ipfw_nptv6, ipfw, 3, 3, 3);

91
MODULE_VERSION(ipfw_nptv6, 1);

92


93
VNET_SYSINIT(vnet_ipfw_nptv6_init, IPFW_NPTV6_SI_SUB_FIREWALL,

94
    IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_init, NULL);

95
VNET_SYSUNINIT(vnet_ipfw_nptv6_uninit, IPFW_NPTV6_SI_SUB_FIREWALL,

96
    IPFW_NPTV6_VNET_ORDER, vnet_ipfw_nptv6_uninit, NULL);

97


98